package socket;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;

/**
 * 聊天室服务端
 */
public class Server {
    private ServerSocket serverSocket;

    public Server() {
        try {
            System.out.println("正在启动服务端...");
            serverSocket = new ServerSocket(8088);
            System.out.println("服务端启动完毕!");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void start() {
        try {
            while(true) {
                System.out.println("等待客户端连接...");
                Socket socket = serverSocket.accept();
                System.out.println("一个客户端连接了");

                ClientHandler handler=new ClientHandler(socket);
                Thread t=new Thread(handler);
                t.start();


            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        Server server = new Server();
        server.start();
    }

    private class ClientHandler implements Runnable{
        private Socket socket;          //为了让下面socket能接受到socket；创一个有参构造，调用时候传参数，
        private String host;//记录该客户端的IP地址信息
        public ClientHandler(Socket socket){   //然后用this赋值给实例变量
            this.socket=socket;
            host = socket.getInetAddress().getHostAddress();
        }

        public void run() {
            try {
                InputStream in = socket.getInputStream();
                InputStreamReader isr = new InputStreamReader(in, StandardCharsets.UTF_8);
                BufferedReader br = new BufferedReader(isr);


                System.out.println("请输入内容吧，输入exit退出");
                String message = null;
                while ((message = br.readLine()) != null) {

                    System.out.println(host+"说" + message);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

}
